|Publication number||US7859838 B2|
|Application number||US 11/641,744|
|Publication date||Dec 28, 2010|
|Filing date||Dec 20, 2006|
|Priority date||Dec 21, 2005|
|Also published as||EP1802189A2, US20070147637|
|Publication number||11641744, 641744, US 7859838 B2, US 7859838B2, US-B2-7859838, US7859838 B2, US7859838B2|
|Original Assignee||Vacon Oyj|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (12), Referenced by (6), Classifications (11), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The present invention relates to an arrangement for placing a frequency converter in a cabinet. The invention also relates to a method for installing a frequency converter in an instrument cabinet.
At present, especially high-power frequency converters are placed in instrument cabinets, and often a plurality of such cabinets may be placed side by side. The frequency converter is installed in a completed instrument cabinet, which comprises a cabinet frame, on which the frequency converter and its power unit and control unit are placed, and cabinet walls.
A drawback with a prior-art installation like this is in particular the fact that the installation work has to be carried out at the site of application or at the instrumentation manufacturer's premises, and this involves a relatively complicated installation and inefficient logistics. Moreover, it requires at the installation site a relatively large number of installers well versed in frequency converter technology.
The object of the present invention is to overcome the drawbacks of prior art and to achieve a new type of arrangement for placing a frequency converter in a cabinet. The solution of the invention is based on a concept whereby the frame of the instrument cabinet is of modular construction and the frequency converter is integrated with the instrument cabinet so that it forms together with the instrument cabinet frame a frequency converter module, the components of the frequency converter being ready mounted in instrument cabinet frame modules before the cabinet is brought to the site of utilization, so that no frequency converter components need to be installed inside the cabinet at the site of utilization. In addition, according to the invention, fitted to the lower part of the instrument cabinet is a continuous plinth structure to be fitted under the instrument cabinet modules.
According to a preferred embodiment of the invention, the instrument cabinet comprises a set of horizontal conductor rails fitted in the upper part of the instrument cabinet and consisting of sections equal to the width of each instrument cabinet module. Thus, the conductor rails can also be fitted in the instrument cabinet before the cabinet is brought to the site of utilization.
The features of the present invention are presented in detail in the claims below.
By applying the invention, a frequency converter and its instrument cabinet can be implemented as a modular structure. This makes it possible to accelerate and facilitate the installation of frequency converters especially at site of utilization.
In the following, the invention will be described in detail by referring to an example and the attached drawings, wherein
To install a frequency converter, the required electric components of the frequency converter are pre-installed at factory in frame modules, of which a required number is provided, depending on the power requirement etc. At the site of utilization, the frequency converter modules are then mounted on a plinth, whereupon the “casing”, i.e. the side walls, doors and top are mounted in place. After this, the frequency converter is ready to be electrically connected to make it operational.
The frequency converter modules are provided with a cooling fan, which blows cooling air especially through the apparatus in a horizontal direction or upwards through an additional channel. These additional channels, through which air is blown upwards, are illustrated as additional channel 201C in
It is obvious to a person skilled in the art that different embodiments of the invention are not exclusively limited to the embodiment example described above, but that they may be varied within the scope of the claims presented below.
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|Citing Patent||Filing date||Publication date||Applicant||Title|
|US8830658||Oct 3, 2013||Sep 9, 2014||Woodward Kempen Gmbh||Switchgear cabinet arrangement of a device for producing electric energy|
|US8837116||Oct 3, 2013||Sep 16, 2014||Woodward Kempen Gmbh||Power switchgear cabinet of a device for producing electric energy|
|US9113578 *||Oct 31, 2012||Aug 18, 2015||Abb Technology Ag||Thermosiphon cooler arrangement in modules with electric and/or electronic components|
|US9113579||Oct 31, 2012||Aug 18, 2015||Abb Technology Ag||Cabinet with modules having a thermosiphon cooler arrangement|
|DE102011001786A1||Apr 4, 2011||Oct 4, 2012||Woodward Kempen Gmbh||Schaltschrankanordnung einer Vorrichtung zur Erzeugung elektrischer Energie|
|WO2012136727A1||Apr 4, 2012||Oct 11, 2012||Woodward Kempen Gmbh||Power switchgear cabinet of a device for producing electric energy|
|U.S. Classification||361/695, 454/184, 361/716, 361/690|
|International Classification||H02M7/00, H05K7/18, H05K7/20|
|Cooperative Classification||H02M7/003, H05K7/1432|
|European Classification||H02M7/00D, H05K7/14F7D|
|Dec 20, 2006||AS||Assignment|
Owner name: VACON OYJ, FINLAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PESONEN, SAMI;REEL/FRAME:018712/0672
Effective date: 20061129
|Jun 19, 2014||FPAY||Fee payment|
Year of fee payment: 4